#481 Memory leak in viff.c

[BlueKiller]

Here is the critical code:

…
        viff_colormap=MagickAllocateMemory(unsigned char *,viff_colormap_size);//502
        if (viff_colormap == (unsigned char *) NULL)
          ThrowReaderException(ResourceLimitError,MemoryAllocationFailed,
                               image);
        /*
          Read VIFF raster colormap.
        */
        if (ReadBlob(image,viff_colormap_size,(char *) viff_colormap)
            != viff_colormap_size)
          ThrowReaderException(CorruptImageError,UnexpectedEndOfFile,image);//513
        ...

Line 513 do not free memory about viff_colormap, this will cause memory leak.

Credit: ADLab of Venustech

[Bob Friesenhahn]

This problem is fixed by Mercurial changeset 15187:149193fc8881. Thanks for the report!